package com.xwm93up.threadsecurity;

/**
 * @Description: 同步代码块
 * @Author: xwm93up
 * @Since: 2022/5/13 17:15
 */
public class ThreadSynchronizedSecurity {
    static int tickets = 10;

    class SellTickets implements Runnable {

        @Override
        public void run() {
            // 同步代码块
            while (tickets > 0) {
                synchronized (this) {
                    if (tickets <= 0) {
                        return;
                    }
                    System.out.println(Thread.currentThread().getName() + "---->售出第: " + tickets + "票");
                    tickets--;
                    try {
                        Thread.sleep(100);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
                if (tickets <= 0) {
                    System.out.println(Thread.currentThread().getName() + "--->售票结束!");
                }
            }
        }
    }

    public static void main(String[] args) {
        SellTickets sellTickets = new ThreadSynchronizedSecurity().new SellTickets();
        Thread thread1 = new Thread(sellTickets, "1号窗口");
        Thread thread2 = new Thread(sellTickets, "2号窗口");
        Thread thread3 = new Thread(sellTickets, "3号窗口");
        Thread thread4 = new Thread(sellTickets, "4号窗口");

        thread1.start();
        thread2.start();
        thread3.start();
        thread4.start();
    }
}
